Window frame and sashes.



H. E. CAMPBELL.

WINDOW FRAME AND SASHES.

APPLICATION mm APR.8. l9l8.

Patented July 23, 1918.

c'ggve'nroz un 4 $513 1 arrow 1e m7 HARRY E. CAMPBELL, OF NEW YORK, N.Y.

WINDOW FRAME SASHES.

Specification of Letters Patent.

Patented July 23, 1918.

Application filed April 8, 1918. Serial No. 227,192.

To all whom it may concern:

Be it known that I, HARRY E. CAMPBELL, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented a certain new and useful lmprovemer'it in Window Framesand Sashes, of which the following is a specification.

The invention is a window-frame and sash, wherein all the structuralparts are of wood except the laterally extending metal sash plates andthe metal plates secured to and in the jamb openings, between whichlast-named plates the gaps receiving the sash extension plates areformed.

In the accompanying drawings I Figure 1 is a horizontal section throughthe sashes and one of the hollow jambs. Fig. 2 is a similar section ofsaid sashes and a portion of the hollow jamb, illustrating a modifiedform of the metal plates which constitute part of the inner wall of thejamb.

Similar letters of reference indicate like parts.

A and B are sliding sashes, provided with any suitable counterbalancingmeans, not shown. The sash frames are of wood, and the glass panes C areseated in said frames and secured by strips D in any suitable way. Thetwo jambs respectively on opposite sides of the sashes are alike, sothat a descri tion of one jamb applies to both. Said jam s are hollow.One of the jambs is shown at E, and comprises the following parts: arear wall F of wood, an outer side wall G of wood, a front wall H ofwood, and an inner side wall, which consists of a wooden member Isecured to front wall H, a woodenmember J secured to rear wall 1*,andtwo narrow flat metal plates K and L respectively secured upon the innerfaces of members I and J. Extending into the jamb and here secured tothe rear wall F is a bar M of wood, upon the face of which is secured awooden partition N. Said partition carries a meta plate 0 which in Fig.1 registers with the plates K and L. Between the opposite edges of plate0 and the adjacent edges of plates K and L are gaps or slots whichextend from top to'bottom of the j amb. Upon the sashes A, B arefastened laterally extending metal plates P, Q which pass through thegaps or slots aforesaid, and at their free edges are preferably insliding contact with ametal wearingplate R on the face of bar M. In thisway, I produce joints between the sashes and the jambs which areimpervious to drafts of air and to moisture, and which obviate any needfor the usual weather-strips.

Instead of making the plates K, L flat and securing them upon the inneredges of members I, J, and instead of arranging the plates 0, K, L toregister with the inner face of member I, as shown in Fig. 1, I maylengthen the partition N and bend the plates K, L at right angles, asshown in Fig. 2, and.

1 may also omit the member J, the plate L then being directly attachedto rear wall F. In this case the sashes are respectively in slidingcontact with the middle plate 0 and with one of the side plates K or L,and, therefore, are not in contact with the wooden portions of the jamb.

I claim:

1. A window-frame and sash construction, comprising a hollow jamb ofwood having in its inner wall a vertical opening extending from top tobottom of the jamb,

vertical metal plates secured to said wall and extending into saidopening on opposite sides thereof, a middle metal plate interposedbetween said plates, there being gaps between the opposing edges of saidfirst-named plates and the edges of said middle plate, a fixed supportfor said middle plate, two sashes in sliding contact with said 'jambwall, and on each sash a laterally exspeetii'el attached to the edge ofthe inner respectively in slidihgl e0ntact with said iamblwe; lboundingsaid opening and to the middle plate and onelof the adjacent plates.2H1" 'frdiitfifaee efthe rear wall of said jamh, In testimony whereofifhave afixed my 4. A windowirame and sashconstrucsignature inpresenceof two witnesses. 5 tion, asset forth in claim 3, the inner faces HARRYCAMPBELL;

of said plates registering; and disposed in a. Witnesses: a A planelying Within the. sash opening be- GERTRUDE TKL'PGRTERQ tween the jambs,and the said sashes being MAY T. McGAimt'.

